Nokia Situations (beta) for Nokia 5230, 5800...
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Don't forget to check the original link! (http://betalabs.nokia.com/apps/nokia-situations)
But this app is allready lounched in Nokia Store, i highly recomment to download it from there, it has way more functionalitys and is way more stable, I'm using it since the past 3 months now and it really is a must have Symbian app